Gage



C. E. A. ENGELMANN AND P. W. HUBBE.

' GAGE.

APPLICATION FILED DEC. I3, 1916.

Patented Feb. 10,1920.

2 SHEETS-SHEET l C. E. A. ENGELMANN AND P. W. HUBBE.

GAGE. APPLICATION FILED DEC. I3. I9I6.

1 ,330,3 l 1 Patented Feb. 10, 1920.

2 SHEETS-SHEET 2.

3 wvenfofas E. A. ENGELLEANNVAND OF BLOOKLYN, NEW YORK.

GAG@

Specification of Letters Patent.VA Patented F91), 10,1920,

Arrlaeeeafl@member131945-. Seriali@ 13%.@.21-

T0027 @01mm it may concern f Al3e'itlzzi1- ywn that we, CARL E. A..

Mama-n PAUL HUBE'; both Silbjf l fftheEinperoiof Germany',"and both reisi-y dts fi th bfoueh Off.' Breklynfn 'the cOlniy Of Kings, and" StatewbfI New York,

harefj'ointly yinteritefd certainnew and USG,-

i'ul Improvements lin Gage'sl'pofvwliich the ollmv'ingl is a specilication.A

Thie'invention relates toa gage that is particularly applicable to 'indicate the'air pressure infthe inner tube of, anjautornohlile v tire,v althoughit 'may be usedl for varioue other purposes. x permits thetire. to be charged with vairv pres; Sure without disengaging'-the gage from the tube. ltsl organizationv among. other thingepis characterized a 'central Vcolpinn witha conduitV that hasl connected thereto A. redatti' arm coacts'with the onejor both of thefsaid arms. The otherl poilvits of novelty ofthe. inrention *are` described inthe s'peoification. The present disclosure shows one of the one or a couple. of liexible arins,

ornisfof the indi/entionv and they application l.

is intended to` ooi/'er all the fornisfthereoi within they scope of the elaine.

ln the drawings Figure l `represents a front. elevation partly broken away 'of av gagel exemplifying'the invention; F ig. 2

shows a, partial section "of Fig. lon the "line 2, v2 and an'end. View of Soine'of ftheele-f niente; Fig.'3 isa topy plan View of Sonie of: the elements shown in Fig. l and a section of Fig. l on the line 3.3,; Fig. Je represents a front Viewl of a. portion, ofi Eig. 2 when not sectioned; Eig. 5 is. a View simil laijlto'F-ig; 4 withan eleinentf in a, changed positiong'Fig. jshoi'fs afeide. elevationf'of an automobile. wheel with the attaohe'd thereto, and Eig. 7 representea' "vi'ew,

Similar to Fig. l withv af modification.

The gage iejv Shown to compriee the Vcentral oolumnOwithftl-ie axialfcondiiit .or port 2l. The upper end Q2 of SaidA oolninn is l provided with an external threadand'an internal thread. A hoeeiilfejitendsffrorn Said column.

A. bushing 25 is in threaded engagement with the internal thread of the end 22. rEhe said bushing has formed at its top end the lange 26, and at its lower end the valve seat 2.8 and the port opening 29. Packing 3:2 is located between the flange and the top face of the end 22 of the column 20. A valve spindle 33, with the bulged portion 34, is

lts coacting rnechanisln located in the bushing 25'` and extends through the portEZS).y 'A' 'charging'andfcheck Valve `3`5 with adi'sk of pliable I'I'lateria136 ie astenedtothe Spindle 334.' A washer is located at the upper` end offthespindle 33 b'elow'sthe bulgedV portion 34. A," spring 39 hears between the washer 3.8 and the `senat 2S,

A' cap 40 cover-ofthe upper endfQQ ofthey column 2O and. is in threaded engagei'nentv with the 4enteraial thread of Said end 22.

rllhe, lower .i end "of the coluninfQOfhas formedl therewith the internalfthread it which engages the upper end of thevbushingl having the axial conduit 46, and the flange 47 with the openingsl 4 8. The latter openings enable a wrench to tighten thefsaid;

laughingy a5 in place.

threaded 'column is shown at 50 withV the axial conduiter port' 51 and enlarged' conduit 52 whioli forms lthe shr'nilderV y53.

The lower end of the column `50 isfconnectedy to theinnertuhe of an automobile tire' not shown. l'lheyupper end of the column 50 is,1 shouldered atu toY forni the reduced upper end 56 withI the external thread 57. "A threaded bushing" 62de lo cated in the ende@ and supports` the valve spindle guide 63.. A valve seat iSforined atthelower end of the guide A packing ring @il is` snpported inA an, annularl recess*V of the guide 63. "A Valve spindle 66 is guided in theguide63, and which at about the. central portion 'of its length has formed therewith an' annular. support 67 for ,the

operating valve 68. it the lower end of the spindle 66 is, formed the-1 holged 'portion G9.

and at thetop lend is iorne'dthe bulged'portion69 A hood 7 0. .:vithan axial.. opening 7 `l f encircles .the lowery end'of the Spindley 66 andlo'ears onthe shoulder 53. A Spring bears: between the support 67. andthe HOQCUQ. i

"Il cap'73 has orinedftherewith the upper flange79. They flange 79 `bears on the flange 47." and; thelowery end 'of the? can sf'h threadedengagement with thef'colunin 50.`

Plialole packing' '30.y ie located-.between the shoulder 55 andthe flange 47. y

From the kcentral column 20 extend the flexible tubular arine 82, 83 which communicate with the `conduit 9,1. An arrn 85 eX- tends Jfrom the tubular'. arm V82 and is per- Ylorated for a threaded pin' 86. A.' link 87 has one end supported on the pin 86. A threaded pin 9() supports the other end of the link 87. A screw post 94 extends upv from the column 20 and is surrounded by the sleeve 95 having the ange 9G. An arm 98 has one end pivoted on the sleeve 95, and has in threaded engagement therewith the pin 90. A washer 99 on the pin 90 separates the arm 98 and the link 87.. Diametrically opposite the pin 90 the arm 98 carries in threaded engagement the pin 100. The pin 100 supports the link 105, and a Washer 106 separates the link 105 andthe Varm 98. An arm 108 extends from the tubular arm 83 and carries a threaded pin 109 which latter also supports one'end of the link 105. A screw pin 110 is supported in the boss 24 and carries a pointer arm 112 having the elongated slot 113.V A screw pin 114 extends through the slot 113 and engages one end of the arm 98. A washer 115 is located between the arms V98 and 112. The arms 85 and 108 are practically eXtensions of their tubular arms.

' V A casing 118 having the cylindrical wall V119 has formed in the latter the slots 120 and 121. Recesses 122, 123 are also formed in the wall 119. The said casing is maintained in place by locating the column 20 in the slots 120 and 121.

A moon shapedv dial plate 125 has formed therewith clamping lugs 126 that engage the recesses 122 and 123. The dial plate has indicated thereon a Yscale as'shown, and a stop pin 12S-extends therefrom.

A cylindrical cover 130, having the shouly -ders 131, 132, top of plate 133 with the open- The cover 145 hasan opening 147, and thel openings 134 and 141 are similar to the opening 147. A rivet 148 clamps together the covers 145, 130 and the disks 138 and 140. l

To use the invention the column 50 is secured to the inner tube 'of the tire, and the cap 78 is` turned on `the thread of the said column 50 to compress the packing 80, to obtain air tight joints between saidy packing, the flange 47 and .the shoulder 55. After the said air tight joints have been made and upon the further downward movement of the cap 78, the lower end of the threaded bushing 45 bears against the bulged top portion 69a of the valve spindle 66 and thereby separates the valve 68 from its seat 55. Thereby the air pressure from the tube of the tire enters the conduit 21 and from thence enters the tubular arms 82, 83. The latter arms separate at their lower. ends and thereby the arm 98 moves in the direction of the arrow, and the pointer arm 112 moves in the. same direction. The air pressure in the tire is indicated on the scale ofthe plate 125 by the pointer arm 112.

When the tube of the tire is to be charged with air, the cap 40 is removed and the air line hose is attached to the top end 22 of the column 20 and the tire isV charged in -the usual manner. Y

Ink Fig. 4the cover 145 is located with its opening 147 so that the scale on the dial plate 125 can be seen and in Fig. 5 said cover is turned so that the opening 134 of the plate 133 is covered, to protect the disk 138 of isinglass.

In Fig. 7 the invention is modified by eliminating the flexible tubular arm 83, the arm 108 and the link 105. In this figure is shown the central column 20, the arm 82,

the caps 40 and 78, the arm 98, the link 87,4 the pointer arm 112, the dial plate y125 with.

its scale and the casing 118. In this modification the movements of the arm 98 are controlled by the arm 82 and the link 87.

Having described our invention, whatwe desire to secure by Letters Patent and claim, is: I

In a gage the combination of a flexible tubular arm actuated by a fluid, a pointer arm, means operatively connecting said pointer arm with the free end of thev tubular arm, a casing detachably connected to the gage, a cover having an opening detachably connected to the casing, la dial plate located between the cover and casing, a disk of transparent material bearing against the inner face of the cover and a rotatable covei` with an opening connected to said cover.

Signed at the borough `of Manhattan, in

the county of New York and State of New York, this 9th day of December, A. D. 1916.

CARL E. A. ENGELMANN. p

PAUL W. HUBBE. ,Y Y i Witnesses for both parties:

A. A. DE BONNEVILLE, A. W. BAKER. 

